Finding the Third Proportional to 443,238 and 912,612

Step by Step Solution

1. Step 1: Write the proportion equation
   443,238 : 912,612 = 912,612 : x
2. Step 2: Convert to fraction form
   443,238/912,612 = 912,612/x
3. Step 3: Cross multiply
   443,238x = 912,612 × 912,612
4. Step 4: Simplify right side
   443,238x = 832,860,662,544
5. Step 5: Solve for x
   x = 832,860,662,544/443,238
6. Step 6: Final answer
   x = 1,879,037.14